# US 7,610,075 B2 · Method for operating a medical imaging diagnostic apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,610,075 B2 - Document ID: US7610075B2 - Status: Granted - Kind: B2 - Application number: 10/313,316 - Filed: 2002-12-06 - Published: 2003-07-31 - Granted: 2009-10-27 - Earliest claimed: 2001-12-07 - Assignees: Siemens Aktiengesellschaft - Inventors: Stefan Roell - Web page: https://patentgrep.com/patent/US7610075B2 ## CPC - A61B 5/055: involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging - A61B 5/704: {Tables} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract In a method for the operation of a medical diagnosis apparatus in an examination, a region of an examination subject to be imaged is placed in an imaging volume of the diagnosis apparatus, a first dataset of the region of interest is registered with a first set of operating parameters of the diagnosis apparatus, and the first set of operating parameters and the first dataset are stored. In a follow-up examination wherein the region of interest is again placed in the imaging volume, a follow-up dataset of the region of interest is registered with the apparatus operated with the stored, first set of operating parameters and the follow-up dataset is stored. ## Claims ### Claim 1 A method for operating a medical diagnostic apparatus comprising the steps of: in an examination, placing a region of an examination subject in an imaging volume of a magnetic resonance diagnostic apparatus and obtaining a first dataset of said region of interest by operating said magnetic resonance diagnostic apparatus with a first set of operating parameters, and storing said first set of operating parameters and said first dataset; in a follow-up examination, after said examination, again placing said region of interest in said imaging volume of said magnetic resonance diagnostic apparatus, and obtaining a follow-up dataset of said region of interest by operating said magnetic resonance diagnostic apparatus with the stored, first set of operating parameters, and storing said follow-up dataset; comparing said first dataset and said follow-up dataset with each other to identify a positional change of said region of interest with respect to said imaging volume between said examination and said follow-up examination; and adapting said stored, first set of operating parameters, dependent on said positional change, to obtain an adapted set of operating parameters, and obtaining a further follow-up dataset in said follow-up examination by operating said magnetic resonance diagnostic apparatus with said adapted set of operating parameters. ### Claim 2 (depends on 1) A method as claimed in claim 1 wherein said further follow-up dataset is a first follow-up dataset and wherein said adapted set of operating parameters is a first adapted set of operating parameters, and comprising the additional steps of: in said examination, obtaining a second dataset of said region of interest by operating said magnetic resonance diagnostic apparatus with a second set of operating parameters, and storing said second set of operating parameters and said second dataset; in said follow-up examination, obtaining a second follow-up dataset of said region of interest by operating said magnetic resonance diagnostic apparatus with the stored, second set of operating parameters; comparing said second dataset and said second follow-up dataset to identify a positional change of said region of interest relative to said imaging volume between said examination and said follow-up examination; and adapting said stored, second set of operating parameters dependent on said positional change obtained by comparing said second dataset and said second follow-up dataset, to obtain a second adapted set of operating parameters and in said follow-up examination obtaining a further second follow-up dataset of said region of interest by operating said magnetic resonance diagnostic apparatus with said second adopted set of operating parameters. ### Claim 3 (depends on 2) A method as claimed in claim 2 comprising the additional steps of: comparing said positional change identified by comparison of said first dataset with said first follow-up dataset to a threshold, and generating said first adapted set of operating parameters if said threshold is exceeded, and comparing the positional change obtained by comparing said second dataset with said second follow-up dataset to said threshold and generating said second adapted set of operating parameters if said threshold is exceeded. ### Claim 4 (depends on 2) A method as claimed in claim 2 comprising obtaining said first follow-up dataset for said region of interest for which said first dataset was obtained, and obtaining said second follow-up dataset for said region of interest for which said second dataset was obtained. ### Claim 5 (depends on 1) A method as claimed in claim 1 wherein said follow-up dataset is a first follow-up dataset and wherein said adapted set of operating parameters is a first adapted set of operating parameters, and comprising the additional steps of: in said examination, obtaining at least one second dataset of said region of interest with a second set of operating parameters, and storing said second set of operating parameters and said second dataset; adapting said stored, second set of operating parameters dependent on said positional change, to obtain a second adapted set of operating parameters; and in said follow-up examination, obtaining a second follow-up dataset by operating said magnetic resonance diagnostic apparatus with said second adapted set of operating parameters. ### Claim 6 (depends on 5) A method as claimed in claim 5 comprising the additional steps of: in said examination, obtaining a third dataset of said region of interest by operating said magnetic resonance diagnostic apparatus with a third set of operating parameters, and storing said third set of operating parameters and said third dataset; comparing said second dataset with said second follow-up dataset to identify a positional change in said region of interest relative to said imaging volume between said examination and said follow-up examination; adapting said stored, third set of operating parameters dependent on said positional change identified by comparing said second dataset and said second follow-up dataset to obtain a further adapted set of operating parameters; and in said follow-up examination, obtaining a third follow-up dataset by operating said magnetic resonance diagnostic apparatus with said further adapted set of operating parameters. ### Claim 7 (depends on 6) A method as claimed in claim 6 comprising the additional steps of: comparing said positional change identified by comparison of said first dataset with said first follow-up dataset to a threshold, and generating said first adapted set of operating parameters if said threshold is exceeded, and comparing the positional change obtained by comparing said second dataset with said second follow-up dataset to said threshold and generating said second adapted set of operating parameters if said threshold is exceeded. ### Claim 8 (depends on 1) A method as claimed in claim 1 comprising obtaining said first follow-up dataset for said region of interest for which said first dataset was obtained, and obtaining said second follow-up dataset for said region of interest for which said second dataset was obtained. ### Claim 9 (depends on 1) A method as claimed in claim 1 comprising aborting said follow-up examination if said comparison between said first dataset and said follow-up dataset is inconclusive regarding said positional change between said examination and said follow-up examination.